{"id":12454,"date":"2018-03-09T08:58:19","date_gmt":"2018-03-09T08:58:19","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/contribuciones-al-estudio-de-las-interacciones-de-las-especies-inorganicas-de-arsenico-con-el-medio-natural\/"},"modified":"2018-03-09T08:58:19","modified_gmt":"2018-03-09T08:58:19","slug":"contribuciones-al-estudio-de-las-interacciones-de-las-especies-inorganicas-de-arsenico-con-el-medio-natural","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/contribuciones-al-estudio-de-las-interacciones-de-las-especies-inorganicas-de-arsenico-con-el-medio-natural\/","title":{"rendered":"Contribuciones al estudio de las interacciones de las especies inorg\u00e1nicas de ars\u00e9nico con el medio natural"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Raposo Fern\u00e1ndez Juan  Carlos <\/strong><\/h2>\n<p>Se ha considerado factores como: ph, potencial redox y la presencia de otras especies (composici\u00f3n y fuerza i\u00f3nica), que definen la distribuci\u00f3n de las diferentes especies de ars\u00e9nico en los sistemas naturales y, por tanto, influyen en la metodolog\u00eda anal\u00edtica a seguir para la cuantificaci\u00f3n de las mismas. Ambos estudios, termodin\u00e1mico y anal\u00edtico deben de afrontarse, de un modo complementario. En esta memoria de tesis se recogen los estudios realizados para definir los distintos equilibrios que las distintas especies de ars\u00e9nico inorg\u00e1nico presentan en la disoluci\u00f3n: hidr\u00f3lisis del h3aso3 y h3aso4, complejaci\u00f3n del haso4 con el fe+3, precipitaci\u00f3n de diversos arseniatos con los iones ca+2, mg+2 y fe+3 y un estudio redox del sistema h3aso3-h3aso4. Con estos estudios se pudo definir el modelo termodin\u00e1mico del ars\u00e9nico inorg\u00e1nico, mediante la metodolog\u00eda de bromley modificada mbm, estando as\u00ed en disposici\u00f3n de poder definir los equilibrios anteriormente considerados y, por tanto, la distribuci\u00f3n de las especies de ars\u00e9nico en funci\u00f3n de las variables que definen cualquier sistema natural, como son ph, composici\u00f3n, fuerza i\u00f3nica y potencial redox.  una vez definida la distribuci\u00f3n de las especies de ars\u00e9nico inorg\u00e1ncio en los sistemas naturales, se ha desarrollado una metodolog\u00eda de an\u00e1lisis en sistemas de aguas de r\u00edo de la especie de ars\u00e9nico inorg\u00e1nico m\u00e1s t\u00f3xica. as(iii), mediante hg-aas acopalado con una resina de intercambio i\u00f3nico de modo continuo. As\u00ed mismo, y para finalizar este estudio, mediante estudios de movilidad se han comprobado las diferentes interacidones que influyen en los fen\u00f3menos de fijaci\u00f3n o movilizaci\u00f3n del ars\u00e9nico inorg\u00e1nico en los sedimentos. Ambos estudios, especiaci\u00f3n anal\u00edtica y movilidad, confirmaron la versatilidad, adecuaci\u00f3n y extensi\u00f3n del modelo termodin\u00e1mico de ars\u00e9nico inorg\u00e1nico a los sistemas naturales.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Contribuciones al estudio de las interacciones de las especies inorg\u00e1nicas de ars\u00e9nico con el medio natural<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Contribuciones al estudio de las interacciones de las especies inorg\u00e1nicas de ars\u00e9nico con el medio natural <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Raposo Fern\u00e1ndez Juan  Carlos <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/07\/2001<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Juan  Manuel Madariaga Mota<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: carmen Camara rico <\/li>\n<li> Mill\u00e1n martin M\u00aa esmeralda (vocal)<\/li>\n<li>Jos\u00e9 Luis G\u00f3mez ariza (vocal)<\/li>\n<li>silvio Sammartano (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Raposo Fern\u00e1ndez Juan Carlos Se ha considerado factores como: ph, potencial redox y la presencia de otras [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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